Bobbin-winding machine



Nov. 27 1923.,

C1. TQEER BOBBIN WINDING MACHINE Filed July II. 1922 Patented Nov. 27,1923.

was

CARL TOIBER, OF BERLIN-KARLSHORST, GERMANY.

BOBBIN-WINDIN G MACHINE.

Application filed July 1,

To all whom it may concern:

Be it known that-I, CARL TOBER, a subject of the German Republic,residing at Berlin-Karlshorst, in Germany, have in- 5 vented certain newand useful Improvements in a Bobbin-finding l\Iacl1ine,-of.

which the following is a specification.

y invention relates to bobbin-winding machines in which the traversingmeans con-. sist in spiders rotating in opposite direction andalternately engaging the thread for guiding it from one end of thebobbin-to the other- Iii the bobbin-windingmachineaccording to thepresent invention, the spindle carrying the bobbin is positively rotatedand has a definite constant or substantially constant rate of speedrelative to the rotation of the said spiders. Moreover,

the guiding face of the thread-guide provided between the said spidersand the bobbin is adjustable.

On the drawing herewith, on which 1 have shown'my invention by way ofillustration, Fig. 1 is a side elevation of the new bobbin-windingmachine; Fig. 2 is a top view with the upper portion removed and aportion being broken away; Fig. 3 is a full top view; Fig. 4 is a,front-view, while Fig. 5 is a diagrammatic view of a detail.

1) drives a pulley 20 secured to the spindle 12 which carries the bobbin11 and is journailed in the bearing-sleeve 38. On the spindle 12 is alsomounted a worm 25, which isin mesh with a worm-gear 26 and carried by anoscillating arm 17 The latter is adapted to swing about the pivot pin 15and also carries the thread-guide 10.

The latter is adjustable relative to the spindle 12 of the bobbin 11,and where bobbins are used having a rim. the arm 17 is so adjusted thatthe thread-guide 10 is at a small distance from the rim of the bobbin.

As shown in Fig. 5, the thread-guide 10 can also lie adjusted so as tobe held at a definite distance a from the circumference of the bobbin,i. e. at a distance which remains uniform while the bobbin is filled. Tothis end, there is provided opposite the thread-guide 10 a roll 37bearing against the circumference of the bobbin. As the cir- 'cumfcrenceincreases, the arm 17 carrying A belt 1 operated by the pulley 4 (F ig.

1922. Serial No. 572,115.

pin 15 by means of the lever 21 and link 22 so as to move the threadguide 10 a corresponding amount away from the bobbin, so that thedistance w remains the same.

011 the shaft of the worm-gear 26 is mounted also a pulley 28 (Figs. 1and 2), from which passes a belt 23 over a pulley 29 (Fig. 4). The shaftof the latter carries a toothed gear 30 which is in mesh with a similargear 6 (Fig. 3) which is carried on the end of the shaft 2 carrying thespider 3.

The shaft carrying the pulley 29 and toothed gear 30 is carried in theend of an arm 24 pivotally arranged on shaft 2 and from the other end ofthe arm 24 is suspended a weight 32 (Fig. 1) so that the belt 23connecting the pulleys 28 and 29 is always kept under tension.

For holding the thread-guide 10 against the bobbin, a weight 39 (Figs. 2and 4:) is provided, from which a cord 40. passes over a sheave 41journalled in a-bracket 42. The cord 40 by means of a lever 43 and alink 4:4 so controls the oscillating movement of the arm 17, that thethread-guide 10 is held against the bobbin 11, the arrangement beingsuch that as the circumference of the bobbin increases, the pull of theweight 39 on the arm 17 correspondingly decreases.

The journal supports 9 and 14 for the spiders 3 and 5 are secured to theoscillating arm 17 and can be arranged on a common base-plate capable ofadjustment on the armv 1 17. The spider 5 is rotated opposite to thedirection of rotation of the spider 3,-by a suitable gearing indicatedat 4:5 in Fig. 1.

The pulleys 28 and 29 or the toothed gears 30 and 6 are exchangeable toprovide for a change in speed of rotation, and the sitely rotatingtraversing members alternately engaging the thread. 1

2. In a bobbin-winding machine, the combinatlon of a rotary spindleadapted to 'IQO carry the bobbin, means for positively (lriv adjustingthe position of the said threading the said spindle, oppositely rotatingguide relative to the said bobbin and the traversing members, anoscillating arm carsaid traversing members. 10 ryin sald traversingmembers, a thread- In testimony whereof I have affixed my gui esupported on the said arm, and means signature.

controlled by the circumference of the said bobbin for operating thesaid arm thereby CARL TOBER.

